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US 2012/0058387 A1Published application
Electrode assembly having bending portions and secondary battery including the same
AssigneeSamsung SDI Co., Ltd.
InventorChang-Bum Ahn
Life of this patent
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Abstract
A secondary battery having positive and negative electrode plates inserted into the interior of a pouch, and positive and negative electrode active material layers respectively coated on the positive and negative electrode plates are arranged at a constant interval. Bending portions are provided to bend positive and negative electrode non-coating portions respectively not coated with the positive and negative electrode active material layers.
Claims18
An electrode assembly having bending portions, comprising:
- one or more positive electrode plates each having positive electrode active material layers formed by intermittently coating a positive electrode active material on a positive electrode collector and positive electrode non-coating portions respectively formed between the positive electrode active material layers;
- one or more negative electrode plates ach having negative electrode active material layers formed by intermittently coating a negative electrode active material on a negative electrode collector and negative electrode non-coating portions respectively formed between the negative electrode active material layers;
- tab portions respectively formed to be extended from the positive and negative electrode plates;
- and
- one or more separators each interposed between the positive and negative electrode plates,
- wherein one or more of the positive and negative electrode non-coating portions have bending portions that enable the electrode assembly to be bent.
3 more elements
A secondary battery, comprising:
- an electrode assembly comprising one or more positive electrode plates each having positive electrode active material layers formed by intermittently coating a positive electrode active material on a positive electrode collector and positive electrode non-coating portions respectively formed between the positive electrode active material layers, one or more negative electrode plates ach having negative electrode active material layers formed by intermittently coating a negative electrode active material on a negative electrode collector and negative electrode non-coating portions respectively formed between the negative electrode active material layers, tab portions respectively formed to be extended from the positive and negative electrode plates, and one or more separators each interposed between the positive and negative electrode plates;
- and
- a case that accommodates the electrode assembly,
- wherein one or more of the positive and negative electrode non-coating portions of the electrode assembly have bending portions that enables the electrode assembly to be bent, and the positive and negative electrode plates are folded/unfolded in a zigzag pattern while the positive and negative electrode non-coating portions are bent by the bending portions.
1 more element
Dependencies are inferred from the claim text.